html,body{
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}
#app,.seller-page,.seller-container
,.trend-page,.trend-container{
    width: 100%;
    height: 100%;
}
.seller,.trend{
    width: 100%;
    height: 100%;
}
canvas{
    background-color: #fff;
}